/Engine/Source/Editor/Experimental/EditorInteractiveToolsFramework/Public/EditorGizmos/TransformGizmo.h
Screen-space helper methodReturns 2D vector projection of input axis onto input view plane
FVector2D GetScreenProjectedAxis ( const [UGizmoViewContext](API\Runtime\InteractiveToolsFramework\BaseGizmos\UGizmoViewContext) * View, const FVector & InLocalAxis, const FTransform & InLocalToWorld ) const